Despite the happy pics of them together, Sanchez's spokesman is shooting down talk of a hookup.

"The rumor is entirely untrue," the rep tells E! News.

It would have been a quick rebound for the 21-year-old Panettiere. Just three weeks ago she broke it off with the boxer after nearly two years of dating, blaming it on the fact they are currently living in two different countries.

The 5-foot-1 actress and the 6-foot-6 pro pugilist made for an odd coupling, with Panettiere once telling Ellen DeGeneres they "find a way" to get busy.

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